Some unusual and useful tips and tricks I found in Ruby 2.0 and 1.9.3

1. Ruby 2.0
Tips and tricks along with 1.9.3

2. Keyword arguments

3. splat operator

4. Convert to hash
#to_h
Works on:
Struct, ENV, Hash, NilClass, OpenStruct
Doesn’t work on:
Array, String, etc

5. Convert to hash

6. Convert to hash

7. Support to Gemfile
gem install --file Gemfile (no Gemfile.lock needed)
gem install --file Gemfile --install-dir vendor/gem

8. inspect: odd behavior is gone!
to_s will not be a hook for inspect!

9. define_method

10. How do you un-define a method?
remove_method

11. MISC
utf-8 default support
_
%i

12. More to come…